Dehong Liu

Dehong Liu
Dehong's Quick Links

  • Biography

    Prior to joining MERL in 2010, Dehong worked at Duke University as a post-doctoral Research Associate (2003-2008), Research Scientist (2008-2010) and Sr. Research Scientist (2010). His main research interests include compressive sensing, signal processing and machine learning.

  • Awards

    •  AWARD    Best paper award at PHMAP 2023
      Date: September 14, 2023
      Awarded to: Dehong Liu, Anantaram Varatharajan, and Abraham Goldsmith
      MERL Contacts: Abraham Goldsmith; Dehong Liu
      Research Areas: Electric Systems, Signal Processing
      Brief
      • MERL researchers Dehong Liu, Anantaram Varatharajan, and Abraham Goldsmith were awarded one of three best paper awards at Asia Pacific Conference of the Prognostics and Health Management Society 2023 (PHMAP23) held in Tokyo from September 11th to 14th, 2023, for their co-authored paper titled 'Extracting Broken-Rotor-Bar Fault Signature of Varying-Speed Induction Motors.'

        PHMAP is a biennial international conference specialized in prognostics and health management. PHMAP23 attracted more than 300 attendees from worldwide and published more than 160 regular papers from academia and industry including aerospace, production, civil engineering, electronics, and so on.
    •  
    •  AWARD    GRSS 2014 Symposium Prize Paper Award
      Date: May 1, 2014
      Awarded to: Dehong Liu and Petros T. Boufounos
      Awarded for: "Synthetic Aperture Imaging Using a Randomly Steered Spotlight"
      Awarded by: IEEE Geoscience and Remote Sensing Society (GRSS)
      MERL Contacts: Dehong Liu; Petros T. Boufounos
      Research Area: Computational Sensing
      Brief
      • Dehong Liu and Petros T. Boufounos are the recipients of the the IEEE Geoscience and Remote Sensing Society 2014 Symposium Prize Paper Award for their paper "Synthetic Aperture Imaging Using a Randomly Steered Spotlight," presented at IGARSS 2013 (TR2013-070).
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    See All Awards for MERL

  • Internships with Dehong

    • EA0069: Internship - PWM inverter switching loss reduction

      MERL is looking for a self-motivated intern to work on PWM inverter simulation and design. The ideal candidate would be a Ph.D. candidate in electrical engineering with solid research background in power electronics, control, and optimization. Experience in switching loss reduction modulation is desired. The intern is expected to collaborate with MERL researchers to carry out simulations, optimize design, analyze results, and prepare manuscripts for scientific publications. The total duration is 3 months.

      Required Specific Experience

      • Experience with simulation tools for PWM inverter design.

    • EA0151: Internship - Physics-informed machine learning

      MERL is looking for a self-motivated intern to work on physics-informed machine learning with application to electric machine condition monitoring and predictive maintenance. The ideal candidate would be a Ph.D. student in electrical engineering or computer science with solid research background in electric machines, signal processing, and machine learning. Proficiency in Python and Matlab is required. The intern is expected to collaborate with MERL researchers to build machine learning model for multi-modal data analysis, prepare technical reports, and draft manuscripts for scientific publications. The total duration is anticipated to be 3-6 months. The start date is flexible. This internship requires work that can only be done at MERL.

    See All Internships at MERL

  • MERL Publications

    •  Wu, J., Goldsmith, A., Liu, D., Wang, B., Zhou, L., Wang, Y., "A Unified Observer for Smooth Speed-Sensorless Drive Control of Induction Machines at Full Speed Range", IEEE International Electric Machines and Drives Conference (IEMDC), May 2025.
      BibTeX TR2025-060 PDF
      • @inproceedings{Wu2025may,
      • author = {Wu, Jingjie and Goldsmith, Abraham and Liu, Dehong and Wang, Bingnan and Zhou, Lei and Wang, Yebin},
      • title = {{A Unified Observer for Smooth Speed-Sensorless Drive Control of Induction Machines at Full Speed Range}},
      • booktitle = {IEEE International Electric Machines and Drives Conference (IEMDC)},
      • year = 2025,
      • month = may,
      • url = {https://www.merl.com/publications/TR2025-060}
      • }
    •  Wu, J., Goldsmith, A., Zhou, L., Liu, D., Wang, B., Wang, Y., "A Novel High-Frequency Injection Method Towards Speed-Sensorless Drive Control of Induction Machines over Full Speed Range", IEEE International Electric Machines and Drives Conference (IEMDC), May 2025.
      BibTeX TR2025-061 PDF
      • @inproceedings{Wu2025may2,
      • author = {Wu, Jingjie and Goldsmith, Abraham and Zhou, Lei and Liu, Dehong and Wang, Bingnan and Wang, Yebin},
      • title = {{A Novel High-Frequency Injection Method Towards Speed-Sensorless Drive Control of Induction Machines over Full Speed Range}},
      • booktitle = {IEEE International Electric Machines and Drives Conference (IEMDC)},
      • year = 2025,
      • month = may,
      • url = {https://www.merl.com/publications/TR2025-061}
      • }
    •  Liu, D., Wang, Y., Shinya, T., "A Sparsity-Driven Method to Iteratively Extract Motor Fault Signatures in Varying-Speed Operations", International Conference on Electrical Machines and Systems (ICEMS), DOI: 10.23919/​ICEMS60997.2024.10920939, November 2024.
      BibTeX TR2024-162 PDF
      • @inproceedings{Liu2024nov,
      • author = {Liu, Dehong and Wang, Yebin and Shinya, Tsurutashin},
      • title = {{A Sparsity-Driven Method to Iteratively Extract Motor Fault Signatures in Varying-Speed Operations}},
      • booktitle = {International Conference on Electrical Machines and Systems (ICEMS)},
      • year = 2024,
      • month = nov,
      • publisher = {IEEE},
      • doi = {10.23919/ICEMS60997.2024.10920939},
      • url = {https://www.merl.com/publications/TR2024-162}
      • }
    •  Liu, D., Shinya, T., "ROBUST SLOT HARMONIC EXTRACTION IN VARYING SPEED OPERATIONS", 26TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES ICEM 2024, DOI: 10.1109/​ICEM60801.2024.10700540, September 2024.
      BibTeX TR2024-119 PDF
      • @inproceedings{Liu2024sep,
      • author = {Liu, Dehong and Shinya, Tsurutashin},
      • title = {{ROBUST SLOT HARMONIC EXTRACTION IN VARYING SPEED OPERATIONS}},
      • booktitle = {26TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES ICEM 2024},
      • year = 2024,
      • month = sep,
      • publisher = {IEEE},
      • doi = {10.1109/ICEM60801.2024.10700540},
      • issn = {2473-2087},
      • isbn = {979-8-3503-7060-7},
      • url = {https://www.merl.com/publications/TR2024-119}
      • }
    •  Park, S., Wang, Y., Qiao, H., Sakamoto, Y., Wang, B., Liu, D., "Control Co-Design for Electric Vehicles with Driving Cycle Synthesis Encoding Road Traffic and Driver Characteristics", IEEE Conference on Control Technology and Applications (CCTA) 2024, DOI: 10.1109/​CCTA60707.2024.10666575, August 2024.
      BibTeX TR2024-114 PDF
      • @inproceedings{Park2024aug,
      • author = {Park, Seho and Wang, Yebin and Qiao, Hongtao and Sakamoto, Yusuke and Wang, Bingnan and Liu, Dehong},
      • title = {{Control Co-Design for Electric Vehicles with Driving Cycle Synthesis Encoding Road Traffic and Driver Characteristics}},
      • booktitle = {IEEE Conference on Control Technology and Applications (CCTA) 2024},
      • year = 2024,
      • month = aug,
      • doi = {10.1109/CCTA60707.2024.10666575},
      • url = {https://www.merl.com/publications/TR2024-114}
      • }
    See All MERL Publications for Dehong

  • Software & Data Downloads

  • Videos

  • MERL Issued Patents

    • Title: "System and method of extracting motor fault signature using sparsity-driven joint blind deconvolution and demodulation"
      Inventors: Liu, Dehong; Kelkar, Varun
      Patent No.: 12,249,942
      Issue Date: Mar 11, 2025
    • Title: "System and Method of Image Stitching using Robust Camera Pose Estimation"
      Inventors: Liu, Dehong; Shi, Laixi
      Patent No.: 12,106,446
      Issue Date: Oct 1, 2024
    • Title: "System for Broken-Rotor Bar Detection in Inverter-Fed Induction Motors Using Graph-Based Motor Current Signature Analysis"
      Inventors: Liu, Dehong
      Patent No.: 11,921,161
      Issue Date: Mar 5, 2024
    • Title: "SYSTEMS AND METHODS FOR IMAGE PROCESSING BASED ON OPTIMAL TRANSPORT AND EPIPOLAR GEOMETRY"
      Inventors: Ma, Yanting; Liu, Dehong; Boufounos, Petros T.; Orlik, Philip V.
      Patent No.: 11,842,504
      Issue Date: Dec 12, 2023
    • Title: "Graph-based array signal denoising for perturbed synthetic aperture radar"
      Inventors: Liu, Dehong; Chen, Siheng; Boufounos, Petros T.
      Patent No.: 11,789,142
      Issue Date: Oct 17, 2023
    • Title: "Sensing using Inverse Multiple Scattering with Phaseless Measurements"
      Inventors: Ma, Yanting; Lodhi, Muhammad Asad; Mansour, Hassan; Boufounos, Petros T.; Liu, Dehong
      Patent No.: 11,635,394
      Issue Date: Apr 25, 2023
    • Title: "Multi-Layer Axial and Radial flux Vernier Permanent Magnet Motor"
      Inventors: Zhou, Lei; Wang, Bingnan; Lin, Chungwei; Liu, Dehong; Wang, Yebin; Teo, Koon Hoo
      Patent No.: 11,502,564
      Issue Date: Nov 15, 2022
    • Title: "Systems and Methods for Blind Multi-Spectral Image Fusion"
      Inventors: Liu, Dehong; Yu, Lantao; Ma, Yanting; Mansour, Hassan; Boufounos, Petros T.
      Patent No.: 11,481,876
      Issue Date: Oct 25, 2022
    • Title: "Estimation Device and Estimation Method"
      Inventors: Hana, Norihiko; Akiyoshi, Masao; Liu, Dehong
      Patent No.: 11,428,612
      Issue Date: Aug 30, 2022
    • Title: "EMI reduction in PWM inverters using adaptive frequency modulated carriers"
      Inventors: Liu, Dehong; Sugawara, Retsu; Orlik, Philip V.
      Patent No.: 11,258,357
      Issue Date: Feb 22, 2022
    • Title: "Tomographic Imaging System"
      Inventors: Mansour, Hassan; Kadu, Ajinkya; Boufounos, Petros T.; Liu, Dehong
      Patent No.: 11,204,317
      Issue Date: Dec 21, 2021
    • Title: "Method for Estimating Bearing Fault Severity for Induction Motors"
      Inventors: Wang, Bingnan; Zhang, Shen; Kanemaru, Makoto; Lin, Chungwei; Liu, Dehong; Teo, Koon Hoo
      Patent No.: 11,099,101
      Issue Date: Aug 24, 2021
    • Title: "Robust Image Registration For Multiple Rigid Transformed Images"
      Inventors: Liu, Dehong; Mansour, Hassan; Boufounos, Petros T.
      Patent No.: 10,949,987
      Issue Date: Mar 16, 2021
    • Title: "Systems and Methods for Multi-Spectral Image Fusion Using Unrolled Projected Gradient Descent and Convolutinoal Neural Network"
      Inventors: Liu, Dehong; Lohit, Suhas; Mansour, Hassan; Boufounos, Petros T.
      Patent No.: 10,891,527
      Issue Date: Jan 12, 2021
    • Title: "System and Method for Robust Sensor Localization Based on Euclidean Distance Matrix"
      Inventors: Liu, Dehong; Mansour, Hassan; Boufounos, Petros T.; Kamilov, Ulugbek
      Patent No.: 10,823,845
      Issue Date: Nov 3, 2020
    • Title: "System and Method for Fused Radar Imaging Under Position Ambiguity of Antennas"
      Inventors: Mansour, Hassan; Kamilov, Ulugbek; Liu, Dehong; Boufounos, Petros T.
      Patent No.: 10,677,915
      Issue Date: Jun 9, 2020
    • Title: "SPARSITY ENFORCING NEURAL NETWORK"
      Inventors: Kamilov, Ulugbek; Mansour, Hassan; Liu, Dehong
      Patent No.: 10,657,446
      Issue Date: May 19, 2020
    • Title: "System and Method for Determining Structure of Material"
      Inventors: Kamilov, Ulugbek; Liu, Dehong; Mansour, Hassan; Boufounos, Petros T.
      Patent No.: 10,571,408
      Issue Date: Feb 25, 2020
    • Title: "System and Method for Radar Imaging Using Distributed Moving Platforms Under Unknown Position Perturbations"
      Inventors: Liu, Dehong; Kamilov, Ulugbek; Boufounos, Petros T.
      Patent No.: 10,545,232
      Issue Date: Jan 28, 2020
    • Title: "Systems and Methods for Multi-Spectral Image Super-Resolution"
      Inventors: Liu, Dehong; Wen, Bihan; Kamilov, Ulugbek; Mansour, Hassan; Boufounos, Petros T.
      Patent No.: 10,482,576
      Issue Date: Nov 19, 2019
    • Title: "ONLINE CONVOLUTIONAL DICTIONARY LEARNING"
      Inventors: Kamilov, Ulugbek; Degraux, Kevin; Boufounos, Petros T.; Liu, Dehong
      Patent No.: 10,409,888
      Issue Date: Sep 10, 2019
    • Title: "System and Method for Processing Images using Online Tensor Robust Principal Component Analysis"
      Inventors: Liu, Dehong; Zhang, Zemin; Vetro, Anthony
      Patent No.: 10,217,018
      Issue Date: Feb 26, 2019
    • Title: "Systems and Methods of Fusing Multi-angle View HD Images Based on Epipolar Geometry and Matrix Completion"
      Inventors: Liu, Dehong; Ma, Yanting; Mansour, Hassan; Kamilov, Ulugbek; Taguchi, Yuichi; Boufounos, Petros T.; Vetro, Anthony
      Patent No.: 10,212,410
      Issue Date: Feb 19, 2019
    • Title: "Method and System for Autofocus Radar Imaging"
      Inventors: Liu, Dehong
      Patent No.: 10,209,356
      Issue Date: Feb 19, 2019
    • Title: "System and Method for Radar Imaging Using Distributed Arrays and Compressive Sensing"
      Inventors: Liu, Dehong; Kamilov, Ulugbek; Boufounos, Petros T.
      Patent No.: 10,042,046
      Issue Date: Aug 7, 2018
    • Title: "System and Method for 3D Imaging using Compressive Sensing with Hyperplane Multi-Baseline Data"
      Inventors: Liu, Dehong; Boufounos, Petros T.
      Patent No.: 9,971,031
      Issue Date: May 15, 2018
    • Title: "System and Method for Through-the-Wall-Radar-Imaging using Total-Variation Denoising"
      Inventors: Handa, Hiroyuki; Mansour, Hassan; Liu, Dehong; Kamilov, Ulugbek
      Patent No.: 9,971,019
      Issue Date: May 15, 2018
    • Title: "System and Method for 3D Imaging Using a Moving Multiple-Input Multiple-Output (MIMO) Linear Antenna Array"
      Inventors: Liu, Dehong
      Patent No.: 9,948,362
      Issue Date: Apr 17, 2018
    • Title: "System and Method for 3D SAR Imaging using Compressive Sensing with Multi-Platform, Multi-Baseline and Multi-PRF Data"
      Inventors: Liu, Dehong; Boufounos, Petros T.
      Patent No.: 9,864,054
      Issue Date: Jan 9, 2018
    • Title: "Fault Detection in Induction Motors Based on Current Signature Analysis"
      Inventors: Liu, Dehong
      Patent No.: 9,618,583
      Issue Date: Apr 11, 2017
    • Title: "System and Method for Multiple Spotlight Synthetic Radar Imaging Using Random Beam Steering"
      Inventors: Liu, Dehong; Boufounos, Petros T.
      Patent No.: 9,335,410
      Issue Date: May 10, 2016
    • Title: "Method and System for Through-the-Wall Imaging using Compressive Sensing and MIMO Antenna Arrays"
      Inventors: Boufounos, Petros T.; Li, Li; Liu, Dehong; Mansour, Hassan; Sahinoglu, Zafer
      Patent No.: 9,261,592
      Issue Date: Feb 16, 2016
    • Title: "Method and System for Random Steerable Sar Using Compressive Sensing"
      Inventors: Liu, Dehong; Boufounos, Petros T.
      Patent No.: 9,182,483
      Issue Date: Nov 10, 2015
    • Title: "Method for Pan-Sharpening Panchromatic and Multispectral Images Using Wavelet Dictionaries"
      Inventors: Liu, Dehong; Boufounos, Petros T.
      Patent No.: 8,699,790
      Issue Date: Apr 15, 2014
    • Title: "Method for Pan-Sharpening Panchromatic and Multispectral Images Using Dictionaries"
      Inventors: Liu, Dehong; Boufounos, Petros T.
      Patent No.: 8,693,771
      Issue Date: Apr 8, 2014
    • Title: "High Resolution SAR Imaging Using Non-Uniform Pulse Timing"
      Inventors: Boufounos, Petros T.; Liu, Dehong
      Patent No.: 8,487,808
      Issue Date: Jul 16, 2013
    See All Patents for MERL